/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_PromiseDebugging_h
#define mozilla_dom_PromiseDebugging_h
#include "js/TypeDecls.h"
#include "nsTArray.h"
#include "mozilla/RefPtr.h"
namespace mozilla {
class ErrorResult;
namespace dom {
class Promise;
struct PromiseDebuggingStateHolder;
class GlobalObject;
class UncaughtRejectionObserver;
class FlushRejections;
class WorkerPrivate;
void TriggerFlushRejections();
class PromiseDebugging {
public:
static void Init();
static void Shutdown();
static void GetState(GlobalObject&, JS::Handle<JSObject*> aPromise,
PromiseDebuggingStateHolder& aState, ErrorResult& aRv);
static void GetPromiseID(GlobalObject&, JS::Handle<JSObject*>, nsString&,
ErrorResult&);
static void GetAllocationStack(GlobalObject&, JS::Handle<JSObject*> aPromise,
JS::MutableHandle<JSObject*> aStack,
ErrorResult& aRv);
static void GetRejectionStack(GlobalObject&, JS::Handle<JSObject*> aPromise,
JS::MutableHandle<JSObject*> aStack,
ErrorResult& aRv);
static void GetFullfillmentStack(GlobalObject&,
JS::Handle<JSObject*> aPromise,
JS::MutableHandle<JSObject*> aStack,
ErrorResult& aRv);
// Mechanism for watching uncaught instances of Promise.
static void AddUncaughtRejectionObserver(
GlobalObject&, UncaughtRejectionObserver& aObserver);
static bool RemoveUncaughtRejectionObserver(
GlobalObject&, UncaughtRejectionObserver& aObserver);
// Mark a Promise as having been left uncaught at script completion.
static void AddUncaughtRejection(JS::Handle<JSObject*>);
// Mark a Promise previously added with `AddUncaughtRejection` as
// eventually consumed.
static void AddConsumedRejection(JS::Handle<JSObject*>);
// Propagate the informations from AddUncaughtRejection
// and AddConsumedRejection to observers.
static void FlushUncaughtRejections();
protected:
static void FlushUncaughtRejectionsInternal();
friend class FlushRejections;
friend class mozilla::dom::WorkerPrivate;
private:
// Identity of the process.
// This property is:
// - set during initialization of the layout module,
// prior to any Worker using it;
// - read by both the main thread and the Workers;
// - unset during shutdown of the layout module,
// after any Worker has been shutdown.
static nsString sIDPrefix;
};
}
// namespace dom
}
// namespace mozilla
#endif // mozilla_dom_PromiseDebugging_h
